Right, but according to wikipedia[1] "Ultrafiltered honey is processed by very fine filtration under high pressure to remove all extraneous solids and pollen grains. The process typically heats honey to 150–170 °F (approx. 65–77 °C) to more easily pass through the fine filter. Ultrafiltered honey is very clear and has a longer shelf life; it crystallizes more slowly because the high temperature breaks down sugar seed crystals, making it preferred by the supermarket trade."

I remain unconvinced that "there is no reason to ultra filter except to hide origin".

[1] http://en.wikipedia.org/wiki/Honey#Classification_by_packagi...

In the EU, it is legal to mix different olive oils. Similarly, I think may be legal to mix honeys from different places of origin. So use n% american honey, (100-n)% non-american honey and supermarkets might still sell it under a brand name which has "American" in its name, e.g. "Sunlit Meadows True American Wildflower Honey" and in the fine print it might say "Contains a blend of American and Non-American Honeys". To make it untraceable and hide the weight fractions of the ingredients, ultra filtering helps such that n = 0.05 (= 5%).